pca as an optimization problem
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For some reasons, I would like to compute PCA (or, rather the eigenvectors and eigenvalues of a (de-meaned) sample covariance matrix ) using an oprimization function. I think I understood how to set up the objective functions and constraints, but struggling to actually implement it with Matlab. I am referring the first answer: What is the objective function of PCA? .
Could anyone help me to understand how to set up the problem with Matlab?